What is Fleming left hand rule
The left hand Fleming rule is used to define the direction of three vectors- magnetic field force, current and the displacement.
It is also known as the motor rule since it is used to find the motion of the conductor or the direction of magnetic force.
We open our thumb, index and middle finger mutually perpendicular to each other. The middle finger represents the direction of current, the middle finger represents the direction of magnetic field force and the thumb represents the direction of displacement.
(Not used for finding the direction of induced current)